Re: Feed Restrictors and Short Travel Hyd Lifters?
Engine has the rear baffle sandwiched between pump and rear main, no screens in the return holes. I haven't got it out of the car yet check how the lifter is built. I took schuebecks out to run these, I have seen the effects of ceramic going through an engine! They seem to work great, just having this oil problem. Also I should note, although I had alright oil pressure last season the pump was nfg so this is a rebuilt 'blueprinted' stock pump now. I've only seen this issue on soild roller engines before and restrictors solved it. Many other local class racers run the same lifter with no issues so I'm baffled! The ring seal/blow by issue may be some of my problem however. But it just seems like way too much oil is coming up top via the valvetrain. I mean, I noticed a huge difference from normal engine while priming the pump by by hand.
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Chris Chapman
1969 Chevelle
NHRA F-G/SA 1090
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